This is a hard thing to do. It is harder to prove. You must first have solid proof that this is going on. Because if you only think it is you can put your friendship in mortal danger. If there is proof, present this proof to your friend and let your friend make up their own mind.
Tell your girlfriend the truth!
.............you can tell if your girlfriend is envolved with her best friend because she will be extra emotional around her. She will touch her alot and talk about her all the time.
You can make up but it will be hard , you can tell her very clearly that this is the last time and please be loyal if you want my friendship to last.
If your girlfriend is sleeping with you this should be considered a good thing. If not then you may want to make your feelings about not sleeping together be known to her.
Gotta tell ur best friend up straight! Tell hlthem the truth about their girlfriend!
tell her
i dont have a friend that has an ex girlfriend that is dating his friend when your friend is on a summer vacation so i cant no no no no no a
If your best friend is your crushes girlfriend then you haft to tell her. It will only become a problem if you are secretive about it.
If u want to be slapped
If you tell your friend then she would say ( WHAT ) If you don't tell your friend and your date knows that your friend have a crush on him, he might tell your friend that he has a girlfriend already.
Ways to find if your girlfriend's best friend likes her:Ask first! Never assume. (It'll ruin your relationship!)OR Look for signs and gestures (the way the best friend looks at her, the way they joke around, the way the best friend touches her, etc)
Tell your friend that she's your girlfriend, and he needs to keep his hands off... If she liked him, she wouldn't be dating you.